Environmental scientist David Keith provides us with his views on climate engineering and how it could be used to put the brakes on global warming.

It’s refreshing to see someone speak of their idea, an important one at that, with such objectivity. David Keith is talking about his ideas for saving the planet, and perhaps humanity. He speaks persuasively but not by preaching. He lays out the theories and says, “we need to thing about this more.”I wish we could have politicians with this sort of candor and thoughtfulness. But that’s about as likely as China reducing CO2 emissions.